Knowledge Management System Of Institute of process engineering,CAS
| Synthesis of adiponitrile from dimethyl adipate and ammonia in the vapor-phase over niobium oxide | |
| Xu, Xiao-Feng1; Wang, Yao-Feng1,2; Guo, Tao1,3; Luan, Li-Kun1,2; Liu, Shan-Shan1,4; Xu, Bao-Hua1,2 | |
| 2022-04-21 | |
| Source Publication | CATALYSIS SCIENCE & TECHNOLOGY
 |
| ISSN | 2044-4753 |
| Pages | 10 |
| Abstract | An environmentally benign route leading to adiponitrile (ADN), a nylon-6,6 intermediate, was achieved by direct vapor-phase nitrilation of dimethyl adipate (DMA) with ammonia (NH3) in a fixed-bed reactor. The challenges of this reaction include not only inhibiting both intramolecular cyclization and the intermolecular polycondensation of the electron-withdrawing group functionalized carbon chain but also suppressing the thermolysis of aliphatic DMA and ADN. Both amphoteric oxides and acidic oxides enable the transformation but exhibit different reactivities. Under evaluation conditions, the acidic oxides exhibit moderate to good nitrile selectivity, while the amphoteric oxides exhibit high DMA conversions with relatively low nitrile selectivity. Under the optimized conditions, the desired ADN was obtained with a selectivity of 84.3% with 97.7% DMA conversion over Nb2O5-1000 consisting of a monoclinic structure/phase (H-Nb2O5). The structure-performance relationship of this catalyst was preliminarily discussed. Furthermore, a tentative reaction pathway consisting of ammonolysis and dehydration processes in a tandem mode was proposed. |
| DOI | 10.1039/d2cy00734g |
| Language | 英语 |
| WOS Keyword | CATALYZED DIMERIZATION ; CARBOXYLIC-ACIDS ; ACRYLONITRILE ; NITRILES ; NB2O5 ; OXIDATION |
| Funding Project | Beijing Natural Science Foundation[2202054] ; National Natural Science Foundation of China[22078337] ; Excellent Young Scientists Fund[22022815] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-JSC022] ; Zhengzhou High Level Talent Certificate[20180200052] |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| Funding Organization | Beijing Natural Science Foundation ; National Natural Science Foundation of China ; Excellent Young Scientists Fund ; Key Research Program of Frontier Sciences, CAS ; Zhengzhou High Level Talent Certificate |
| WOS ID | WOS:000793315400001 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/53325 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Yao-Feng; Xu, Bao-Hua |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Innovat Acad Green Mfg, Beijing Key Lab Ionic Liquids Clean Proc, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 3.Tianjin Univ Sci & Technol, Tianjin 300222, Peoples R China 4.Zhengzhou Univ, Zhengzhou 450001, Peoples R China |
| Recommended Citation GB/T 7714 | Xu, Xiao-Feng,Wang, Yao-Feng,Guo, Tao,et al. Synthesis of adiponitrile from dimethyl adipate and ammonia in the vapor-phase over niobium oxide[J]. CATALYSIS SCIENCE & TECHNOLOGY,2022:10. |
| APA | Xu, Xiao-Feng,Wang, Yao-Feng,Guo, Tao,Luan, Li-Kun,Liu, Shan-Shan,&Xu, Bao-Hua.(2022).Synthesis of adiponitrile from dimethyl adipate and ammonia in the vapor-phase over niobium oxide.CATALYSIS SCIENCE & TECHNOLOGY,10. |
| MLA | Xu, Xiao-Feng,et al."Synthesis of adiponitrile from dimethyl adipate and ammonia in the vapor-phase over niobium oxide".CATALYSIS SCIENCE & TECHNOLOGY (2022):10. |
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